package com.song.mall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.song.common.constant.ProductConstant;
import com.song.common.to.SkuHasStockVo;
import com.song.common.to.SkuReductionTo;
import com.song.common.to.SpuBoundTo;
import com.song.common.to.es.SkuEsModel;
import com.song.common.utils.R;
import com.song.mall.product.entity.*;
import com.song.mall.product.feign.CouponFeignService;
import com.song.mall.product.feign.SearchFeignService;
import com.song.mall.product.feign.WareFeignService;
import com.song.mall.product.service.*;
import com.song.mall.product.vo.*;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.song.common.utils.PageUtils;
import com.song.common.utils.Query;

import com.song.mall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeginService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }


    //TODO 其他高级部分完成
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1 保存spu基本信息 pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2 保存spu描述图片信息 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(spuInfoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3 保存spu图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(),images);

        //4 保存spu的规格参数信息 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            if (attrEntity!=null) {
                valueEntity.setAttrName(attrEntity.getAttrName());
            }
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);


        //保存spu的积分信息
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeginService.saveSpuBounds(spuBoundTo);
        if (r.getCode()!=0){
            log.error("远程保存spu积分信息失败");
        }

        //5 保存spu对应的sku信息
        List<Skus> skus = vo.getSkus();
        if (skus!=null&&skus.size()>0){
            skus.forEach(item->{
                String defaultImage ="";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg()==1){
                        defaultImage = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImage);
                //5.1 保存sku的基本信息 pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> skuImagesEntityList = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    //返回true就是需要的 false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //5.2 保存sku的图片信息 pms_sku_images
                skuImagesService.saveBatch(skuImagesEntityList);

                //TODO 没有图片路径的无需保存
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                //5.3  保存sku的价格参数信息 pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);
                //5.4 保存sku的优惠和满减信息
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount()>0||skuReductionTo.getFullPrice().compareTo(new BigDecimal("0"))==1){
                    R r1 = couponFeginService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode()!=0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });

        }




    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();
        String  key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            queryWrapper.and((w)->{
               w.eq("id",key).or().like("spu_name",key);
            });
        }
        String  status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            queryWrapper.eq("publish_status",status);
        }
        String  brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)){
            queryWrapper.eq("brand_id",brandId);
        }
        String  catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
            queryWrapper.eq("catalog_id",catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                queryWrapper

        );

        return new PageUtils(page);
    }

    //商品上架
    @Override
    public void up(Long spuId) {
        //查出当前spu对应的sku的信息通过spuid
        List<SkuInfoEntity> skus  = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());


        //TODO 4、查询当前sku的所有可以被来检索的规格参数属性
        List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrList(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        //过滤出一个都是检索属性的attrs的集合
        List<Long> searchAttrsIds = attrService.selectSearchAttrIds(attrIds);
        Set<Long> idSet = new HashSet<>(searchAttrsIds);

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs);
            return attrs;
        }).collect(Collectors.toList());

        //TODO 1、远程发送调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap =null;
         try{
             R r = wareFeignService.getSkusHasStock(skuIdList);
             TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
             };
             stockMap = r.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
         }catch (Exception e) {
             log.error("库存服务查询异常:原因",e);
         }


        //封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //封装sku需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, esModel);
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
            //设置库存信息
            if (finalStockMap ==null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、 热度评分
            esModel.setHotScore(0L);
            //TODO  3、查询品牌和分类的名字信息
            BrandEntity brand = brandService.getById(sku.getBrandId());
            esModel.setBrandImg(brand.getLogo());
            esModel.setBrandName(brand.getName());

            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());
            //设置检索属性
            esModel.setAttrs(attrsList);
            return esModel;
        }).collect(Collectors.toList());

        //TODO 5 、将数据交给es保存
        R r = searchFeignService.productStatusUp(upProducts);
        if(r.getCode()==0){
            //远程调用成功
            //TODO 6、修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else{
            //远程调用失败
            //TODO 7、重复调用 接口幂等性；重置机制
        }
    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity spuInfoEntity = getById(spuId);
        return spuInfoEntity;
    }
}